核电厂堆芯支承下板与吊篮热处理变形数值分析  

Numerical Analysis of Post-Welding Heat Treatment for Lower Core Support Plate and Core Barrel

作　　者：廖家麒[1] 刘冬安[1] 林绍萱[1] 于庆[1] 沈秋平[1] 

机构地区：[1]上海核工程研究设计院,上海200233

出　　处：《机械研究与应用》2013年第3期23-26,共4页Mechanical Research & Application

摘　　要：堆芯支承下板和吊篮均属于核反应堆中的关键组件,对反应堆安全运行起着重要作用。面向堆芯支承下板和吊篮的热处理变形问题,首次尝试建立堆芯支承下板与吊篮的"热-力"直接耦合热处理数值模型,并系统分析热处理过程中堆芯支承下板和吊篮的温度场和残余变形的变化规律;最后通过对比模型结果和工程测量结果,验证了模型和结论的正确性,该分析模型可为后续揭示热处理残余变形机理和热处理工艺优化设计提供模型基础。Lower core support plate （LCSP） and core barrel （CB） are the key components in the nuclear reactor plant. Ai- ming at the deformation analysis of LCSP and CB after heat treatment, a thermal-structural direct-coupling model is developed in this paper. The general rules of temperature and deformation of LCSP and CB during the post- welding heat treatment process are obtained. The methodology and results of this study are validated by comparing the numerical results with the field measurements, which can be used to guide the optimization of the heat treatment process in the future.

关 键 词：核反应堆 堆芯支承下板 吊篮 热处理 

分 类 号：TH123[机械工程—机械设计及理论]